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(No Model.) 2 Sheets-Sheet 1.

- W. H. 8v H. SMITH.

PLOW. i No. 410,121. Patented Aug. 27 1889.

2 sheets-smet 2.

(No Model.)

VW. 1-1. & H. SMITH.

. PLOW 110,410,121.

`Patented Aug. 27 1889'. 1

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field, admits of going back and forth on the UNITED STA-TES PATENTOFFICE. i U

WILLIAM HENRY SMITH AND HIRAM SMITH, OF DICKSON, PENNSYLVANIA; SAIDHIRAM SMITH ASSIGNOR TO SAID YILLIAM HENRY SMITH.

PLOW.

SPECIFICATION forming part of Letters `Patent Iva-110,121, dated August27, 1889.

' Application led May 29, 1889- Serial No. 312,499. (No model.)

To all whom t may concern:

' Be it known that we,W1LLIAM HENRY SMITH l and HIRAM SMITH, bothcitizens of the United States, residing at Dickson, in the county ofLackawanna and State of Pennsylvania, have invented certain new anduseful I1nprove` ments in Reversible Duplex Mold Board Plows and we dohereby declare the following the art to which it appertaius to make anduse the same.

Our invention relates to reversible or dupoint or share and are welladapted for both `plex mold-board plows which have a single hillside andlevel plowing, enable a plow- V man to plow a field without any deadfurrows, l and avoids the necessity of going around the same side of thefield, and thus plowing the f furrows immediately alongside one another;

and it consists in certain novel construct-ions,

combinations, and arrangements of parts in plows of the class mentioned,as will be hereinafter fully described and claimed, whereby the same are4improved and rendered more useful and convenient of manipulation.l

In the accompanying drawings, Figure 1 is a top view of our improvedplow; Fig. 2, a side View of the same as viewed from the land side.--Fig. 3 is an inverted view of the moldboard and share or point andpart of the connecting-rod thereof separate from the other parts-onwhich they are supported and adjusted. Fig. 4 is a central longitudinalsection of the mold-board,share, connecting-rod, and supportingcentering-bracket. Fig. `5 is a detail section in the line a c', Fig. 3,show- A ing a fastening between the share and the mold-board as anadjunct to the screw-fastening. Fig. 6 is a rear view of the plow, thehandle-bracket of the beam being shown in cross-section. Fig. 7 is a topview of the mold-board and share shown in Fig. 3. Fig. 8 is a brokenenlarged longitudinal section of the plow, and Fig. 9 is a perspectiveview of the sole or slade and landside bar of the plow. y

Ain the drawings represents a cast or other metal beam carrying anadjustable depthgaging wheel A and an adjustable clevis A2. This beam isconstructed with a high backward curvature cv at the point where itbegins to form the standard, and this is for allowing a freedom ofescape of weeds and coarse grass and thereby rendering theplowpractically self-clearing. The downwardly and forwardly curved portionof this beamforms, with the broader portion a2, the standard, and fromthe rear of ,the standard a 6o bracketfarm a3 extends backward for theattachment thereto of the handles B, said bracket having on each sidehandle-clasping lugs a4- and staying stop-lugs a5, as shown.

O represents the mold-board, and D the point or share. The mold-hoardandA point or share may be said to resemble Iin general form similarparts of a duplex; mold-boardshovel cultiVator-plow as adapted for usedirectly in front of a standard, or as when 7o viewed as represented inFigs. 3 and 7, the mold-board having a ridge c, terminating in a splito5 at its middle, and two symmetrical twisted or curved wings c' c2, oneof which is on the right-hand and the otheron the lefthand side of theridge, as shown, andthe share having a depressed concave form or twobeveled surfaces d d', one of which is on the right hand and the `otheron theleft hand of the center line y y of its width when viewed 8o as inFigs. 3 and 7.

The point or share D when applied tothe stan dard a2 presents ahorizontal sole-surface,

a vertical landside-surface, and an inwardlycurved oblique furrow-sidesurface, as shown in Figs. l, 2, 4, G, and 8, and this is the casewhether the plow is adjusted for making its forward or return trip, andthe moldfboard when applied to the standard presents` two oblique sod orearth directing and discharging 9o surfaces, one twisted toward andtheother from the land side of thestandard, and this is the case whetherthe plow is adjusted for making its forward or return trip, andtherefore the share and the mold-board can he made to operate forturning furrows on either the right or left handside of the standard a2,the mold-board wing c2 remaining idle when the wing c is in action andthe wing cremaining idle when the wing c? is in action. loo

By referring to Fig. 5 of the drawings it will be seen that the point orshare D is formed with a locking-tongue h, and the moldboard C withaslot h through it, and that the tongue is inserted into the slot andmade to bind underneath the mold-board, and thus when the screw h2,which fastens the point or share to the mold-board, is inserted andconfined by a nut h3 the mold-board and share are kept very iirmlytogether and in position with respect to each other, and by referring toFigs. 2, 6, and 8 it will be seen that the thus united'point or share Dand mold-board C are connected-V pivotally to the standard, this beingaccomplished, preferably, by the following-described means: To thebottoin of the standard 03a steel or other grooved metal sole-bar orslade E2 is fitted by means of beveled shoulders t' t', formed,respectively, on the sole-bar and the standard, and by a tongue 2 andsocket 3, also formed, respectively, on and in the standard andsole-bar, and said sole bar is held in place and from turning on thestandard by a screw-bolt j, whose nut j is accessible through ahorizontal slot in the standard. Y

On the front end of the standard, just at the base, a shortpivot-extension lo is provided, and in the rear end of the sole-bar E2 ashallow horizontal socket 71; is formed. The pivotextension kenters acorresponding socket k2 formed in the mold-board casting, and into thesocket 7c a pivot k3 of a skeleton supporting-bracket F is fitted. Thebracket F is shaped at its upper side to the under surface of the duplexmold-board, and to it said moldboard' is firmly bolted YatVlh'beingwalso sustained by notched ribs L of the mold-board.

At the sides of the bracket longitudinal locking-holes mm are provided,and into one or the other of the two holes a bolt n of a turning andsliding locking-rod G enters whenever the mold-board and point or shareare changed from the right to the left hand side of the standard, orfrom the left to the right hand side thereof. The bracket is stayed andits pivot kept in the socket of the sole-bar by Ymeansof a screwconnecting-rod H, hinged to the under side of the mold-board, passedthrough the bracket F at the center of its width, and secured by a nut,as shown. The locking-rod G is iitted to slide in eyes n uponrespectively the connecting cross-bar of the handles and thehandle-bracket, to which the handles are attached, and at its rear end,which is convenient for manipulation by the plowman' while he iscontrolling his team. It is formed with a hand-loop, while on itsforward end alimitation-Stopp2 and the bolt n are formed, as shown, orin any other suitable equivalent way.

It will be understood that to change the mold-board and point or sharefrom the position shown in full lines in Fig. G to that shown in dottedlines in same figure, the plowman while in full control of his team andin a central position can without bending his body accomplish it, itsimply being necessary to draw back the rod G, so as to withdraw thebolt u from the hole m, and thereby unlock the mold-board, and then toraise the rear portion of the beam and otherwise so manipulate 'itlaterally by the plow-handles while the mold-board and share are restingupon the ground as to cause the moldboard and share to become reversedand occupy the position on the other side of the standard, as shown bydotted lines, whereupon the mold-board and share are again locked bysliding the rod forward after turning it, and-thereby entering -the boltfn into the hole m', and this operation is repeated when 'it becomesnecessary to change the mold -board and share from the position shwn indot-ted lines to the position shown in full lines. Vhen the mold-boardand share have been reversed, the team is turned around and the plowmoved forward immediately alongside the furrow last formed. The ridge cand split c5 between the wings of the moldboard insure the bringing ofone sod or earth directing and discharging surface, as c', into action,and the complete throwing of the other, as c2, out of action, or thebringing of c2 into action and the throwing of c out of action. The plowby having the duplexmoldboard is better adapted for hillside plowingthan other swivel-plows, while it answers just as well for levelplowing.

When the sole-bar or slade becomes worn out, it can be replaced byanother, and thus much of the expense of a new plow standard and beamwill be Saved; bullas au equivalent of our detachable sole-bar forpurposes of securing a horizontal longitudinal pivotal connection wouldbe asole-bar cast homogeneous with the standard, we do not confineourselves to the detachable sole-bar. It is, however, far preferable inthe light of economy to Vmake it separate, from the standardr What weclaim as our invention is l. In a reversible or duplex mold-board plow,the combination of the angular locking rod G, provided with alongitudinal bolt n, and arranged both Vto slide and turn in itsguiding-eyes, with a share or point, and a reversible angular mold-boardhaving a supporting-bracket provided with longitudinal bolting-holes'and connected to the standard portion of the plow by a longitudinalpivotal connection, substantially as and for the purpose described.

2, A reversible duplex mold-board plow comprising, in combination, thefollowing parts, to wit: the united beam, standard, and handlesupporting'bracket arm, the beam being curved, as at a, and the standard providedwithbeveled shoulders i', pivot 7c, and tongue or dowel i2, the sole-barE2, having a tongue or ydowel-socket 3 and a pivot-socket 7c', theuniting-boltj, the pivot or share D, having a horizontal sole-surface, avertical landsidesurface, an inwardly-curved oblique surface, and apivot-socket k2, the supporting-bracket IOO IZO

F matching on its upper end the under transverse shape of the duplexmold-board and having pivot 7c3, the screw connecting-rod H, andtheduplex mold-board C, formed for 5 about one-third its length with abroadunited body-surface extending from sideto side and rearwardly of saidportion formed with an inclined concaved parting-ridge c, the angle ofwhich ridge gradually becomes more acute,

1o and with symmetrical mold-board Wings c c2,

the helical curved surfaces of which are separated completely by saidridge along the remaining length of the mold-board, and thelocking-bolt, substantially as and for the pur- 15 pose described.

3. In a reversible duplex mold-board plow, the combination of themold-board having holes h extending entirely through it, the

share having a tongue h cast upon it and entering through said hole andbearingagainst the under side of the mold-board, and the unitingscrew-bolt h2, passed through the share and mold-board, substantially asdescribed.

4., In a reversible duplex mold-board plow, the united curved beam andstandard cast Witha handle-supporting bracket-arm a3, on which are castthe staying stop-lugs a5, and

the divided clasping-lugs a4, substantially asV It is herebycertedthat'in Letters :Patent No. 419,121, granted August 27, 1889,

' upon the application of William Henry Smith and Hiram Smith, ofDickson, Pennsylvania, for an improvement in Plows, an error appears inthe printed specification requiring correction as follows: In line 131,page 2, the Word pivot should read point, and that the said LettersPatent should be read With this correction therein to make the sameconform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 10th day of September, A. D.1889.

p oYRUs BUssEY,

Assistant Secretary of the Interior.

[SEAL] C ountersgned C. E. MITCHELL,

Commswonev of Patents.

